Heater



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HEATER Original Filed Sept. 9, 1929 Patented Jan. 16, 1934 UNITED STATES HEATER Donald W. Lake, Chicago, lll.

Application September 9, 1929, Serial No. 391,244 Renewed September 29, 1932 2 Claims. (Cl. 257-137) lspel air therethrough, and the second radiator section operatively connected with said first radiator section, through which the fan member operates to induce outside air whereupon said air is initially warmed prior to its nal projection.

through the rst radiator.

Other objects will appear in the following specification taken in connection with the annexed drawing, in which- Fig. 1 is a front elevational View of my heater with parts broken away;

Fig. 2 is a plan view, from above; and

Fig. 3 is a side elevation thereof.

Before referring specifically to the drawing, it might be stated that the present heater is an improvement upon that disclosed and claimed in my co-pending application, Serial Number 238,253, filed December 7, 1927, which has since developed into Patent No. 1,767,082, issued June 24, 1930.

In the drawing, there is shown a Warm air heater comprising an enclosure member 10. This enclosure member, or casing, entirely surrounds the sides, top, bottom and rear portion, in a substantially air-tight manner, leaving the front portion of the heater open. In this front portion of the casing 10 is disposed an upper radiator member made up of the following portions; an upper tank or condenser portion 11, a radiator portion 12, which may be tubular or of any other type desired, and a lower tank 13. Immediately beneath this rst mentioned radiator and properly connected thereto is a second radiator portion 14, which may be either tubular or of any other character desired. Finally, beneath this radiator section is a water tank 15.

A glass water gauge 15a connects the tank 11, located at the top, with the tank 15 at the bottom. Obviously, water provides the heat exchange medium and the circulation thereof is provided by means of a heating element of any practical design, here displayed as a curved electric heating unit, the same being designated 17 and mounted on a steam boiler 16 disposed adjacent to the second radiator. It is clear that this steam boiler might be disposed in various positions within the casing 10 and might be of a different type.

A tube 18 connects the lower water tank with the steam boiler and other tubes 19 connect the steam boiler with the upper tank 11 of the upper radiator. 'Circulation of the water is accomplished obviously by the heating element, which heats the water to such an extent that the tubes 19 carry the steam to the upper radiator 11 where same is condensed and flows through the tubes or channels of the upper radiator 12 into the tank 13.

The heated water nally flows through the second radiator member which is operatively connected to the rst mentioned radiator and nally into the tank 15, where same is again heated and elevated in the manner heretofore described.

The fan driven by electric motor generally designated 20 induces air at atmospheric temperature through the lowermost radiator, where said air is initially heated prior to its being dispelled by the electric fan through the upperk radiator portion.y This particular manner of pre-heating the incoming air and expelling same through the upper radiator results in a greatly increased eiliciency of the heater and raises considerably the temperature of the air which is finally projected from the upper radiator portion into the room or dwelling to be heated.

This application is directed to the disposition of the second radiator beneath the rst, the cooperative connection therebetween and the combination with the enclosing casing and the manner of handling the incoming air and projection thereof through the upper radiator portion.

What I claim is:

1. In a heat exchanging device, a casing having a bottom, top and sides, one of said sides having an opening therein, a radiator positioned ad- `jacent the aforesaid opening in the upper portion thereof, a second radiator operatively connected to said rst radiator and disposed immediately below same, a water tank connected to said second radiator, means for eifecting circulation of the heat exchanging medium through said radiators and a fan positioned within said casing and rearwardly of said first radiator, said fan operating to induce a ow of air through the lower radiator and to expel same through the upper radiator.

2. In a heat exchange device, a casing having a bottom, top and sides, one of said sdesibeing open, a double radiator comprising upper and lower members disposed adjacent the open side of the casing, means for eiecting a circulation of heat exchange medium through said radiators, said member being disposed within the casing and a fan positioned within said casing and rearwardly of one of said radiators, said fan operating to induce a flow of air through the lower radiator thereby initially preheating the air and thereafter expelling said preheated air through the upper radiator.

DONALD W. LAKE. 

